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Finding the Fourth Proportional to 654,806.20, 982,209.30 and 626,812.60

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Solution

The fourth proportional to 654,806.20, 982,209.30 and 626,812.60 is: 940,218.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,806.20 : 982,209.30 = 626,812.60 : x
  2. Step 2: Convert to fraction form
    654,806.20/982,209.30 = 626,812.60/x
  3. Step 3: Cross multiply
    654,806.20x = 982,209.30 × 626,812.60
  4. Step 4: Simplify right side
    654,806.20x = 615,661,165,077.18
  5. Step 5: Solve for x
    x = 615,661,165,077.18/654,806.20
  6. Step 6: Final answer
    x = 940,218.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.